From: Hsin-Yu Chao hychao@chromium.org
[ Upstream commit 56b5453a86203a44726f523b4133c1feca49ce7c ]
Bluetooth PTS test case HFP/AG/ACC/BI-12-I accepts SCO connection with invalid parameter at the first SCO request expecting AG to attempt another SCO request with the use of "safe settings" for given codec, base on section 5.7.1.2 of HFP 1.7 specification.
This patch addresses it by adding "Invalid LMP Parameters" (0x1e) to the SCO fallback case. Verified with below log:
< HCI Command: Setup Synchronous Connection (0x01|0x0028) plen 17 Handle: 256 Transmit bandwidth: 8000 Receive bandwidth: 8000 Max latency: 13 Setting: 0x0003 Input Coding: Linear Input Data Format: 1's complement Input Sample Size: 8-bit # of bits padding at MSB: 0 Air Coding Format: Transparent Data Retransmission effort: Optimize for link quality (0x02) Packet type: 0x0380 3-EV3 may not be used 2-EV5 may not be used 3-EV5 may not be used
HCI Event: Command Status (0x0f) plen 4
Setup Synchronous Connection (0x01|0x0028) ncmd 1 Status: Success (0x00)
HCI Event: Number of Completed Packets (0x13) plen 5
Num handles: 1 Handle: 256 Count: 1
HCI Event: Max Slots Change (0x1b) plen 3
Handle: 256 Max slots: 1
HCI Event: Synchronous Connect Complete (0x2c) plen 17
Status: Invalid LMP Parameters / Invalid LL Parameters (0x1e) Handle: 0 Address: 00:1B:DC:F2:21:59 (OUI 00-1B-DC) Link type: eSCO (0x02) Transmission interval: 0x00 Retransmission window: 0x02 RX packet length: 0 TX packet length: 0 Air mode: Transparent (0x03) < HCI Command: Setup Synchronous Connection (0x01|0x0028) plen 17 Handle: 256 Transmit bandwidth: 8000 Receive bandwidth: 8000 Max latency: 8 Setting: 0x0003 Input Coding: Linear Input Data Format: 1's complement Input Sample Size: 8-bit # of bits padding at MSB: 0 Air Coding Format: Transparent Data Retransmission effort: Optimize for link quality (0x02) Packet type: 0x03c8 EV3 may be used 2-EV3 may not be used 3-EV3 may not be used 2-EV5 may not be used 3-EV5 may not be used
HCI Event: Command Status (0x0f) plen 4
Setup Synchronous Connection (0x01|0x0028) ncmd 1 Status: Success (0x00)
HCI Event: Max Slots Change (0x1b) plen 3
Handle: 256 Max slots: 5
HCI Event: Max Slots Change (0x1b) plen 3
Handle: 256 Max slots: 1
HCI Event: Synchronous Connect Complete (0x2c) plen 17
Status: Success (0x00) Handle: 257 Address: 00:1B:DC:F2:21:59 (OUI 00-1B-DC) Link type: eSCO (0x02) Transmission interval: 0x06 Retransmission window: 0x04 RX packet length: 30 TX packet length: 30 Air mode: Transparent (0x03)
Signed-off-by: Hsin-Yu Chao hychao@chromium.org Signed-off-by: Marcel Holtmann marcel@holtmann.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- net/bluetooth/hci_event.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 3e7badb3ac2d..a044e6bb12b8 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -4097,6 +4097,7 @@ static void hci_sync_conn_complete_evt(struct hci_dev *hdev, case 0x11: /* Unsupported Feature or Parameter Value */ case 0x1c: /* SCO interval rejected */ case 0x1a: /* Unsupported Remote Feature */ + case 0x1e: /* Invalid LMP Parameters */ case 0x1f: /* Unspecified error */ case 0x20: /* Unsupported LMP Parameter value */ if (conn->out) {